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(NoMoael.)

J. P. LAVIGNE.

y TUGK MARKER. No. 343,464. Patanted June 8, 1886.

N. PETERS. vnm-Litnugmphar, wanhlngmn, nc.

V UNITED STATES PATENT Orrrcn.

JOSEPH P. LAVIGNE, v.OF NEV HAVEN, CONNECTICUT, ASSIGNOR TO JANE'HALLIWELL OF SAME PLACE.

TUCK-MARKER.

SPECIFICATION forming part of Letters Patent No. 343,464, dated June 8,1886.

Application tiled October 1Q, 17885. ISerial No. 179,6 30. (No model.)

.To all whom it may concern.:

Be it known that I, JOSEPH l?. LAVIGNE, of New Haven, in the county ofNew Haven and State of Connecticut, have invented new Improvements inTuck-Markers; and I do hereby declare the following, when taken inconnection with accompanying drawings and the letters of referencemarked thereon, to be a full, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in-

Figure 1, a perspective View of the marker as attached to or forming apart of the presserfoot; Fig. 2, atop or plan view ofthe marker asapplied to the base for attachment to the cloth-plate; Fig. 3, amodification whereby the advance of the roller is imparted through theactuating-lever H 5 Fig. 4, an end view showing the rib b and theoperation of the markingroller a in connection with the slot e.

This invention relates to animprovement in the attachment forsewing-machines designed to crease fabric in the formation of tucks, asecond crease being formed while the preceding tuck is being stitched,and commonly called tuck-markers.7 The marking is usually produced bymeans of a sharp edge and a corresponding V-shaped pressing device.

The object of my invention is to give tothe marker a rubbing effect,whereby a better crease will be formed than can be done simply bypressure; and it consists,principally,,in constructing the markingdevice to consist of a rib and a creasing-roller adapted to work overthe edge of the said rib upon the fabric introduced between the two, andso that the roller will work over a considerable length of surface ofthe fabric, and crease it over the rib;

and it also consists in details of construction, as more fullyhereinafter described, and particularly recited in the claims.

A represents the base, which, as illustrated in Fig. l, is attached toor made a part of a presser-foot,-B, but it may be made a part of abase, C, Fig. 2, to be attached to the workplate by the usual set-screwthrough the hole D.

E represents the bar between which and the base the fold passes to bestitched in the usual manner. This bar E is made as a continuation ofthe base A, the bar being doubled over the base, and, as seen in Fig. l,the bar E carrying the guide F.

G is the tuck-marker arm, which is hung at one end of the base, itsother end extending towardV the opposite end of the base, and at thesaid opposite end the roller a is hung directly to the' arm, the axis ofthe said roller being parallel with the axis of the said arm.

On the base immediately below and in the same plane as the roller is arib, b. This rib is preferably inclined downward and forward, the normalposition of the roller being over the highest or forward end of the rib.

H is a lever hung to the presser-foot,pro vided with a slot, d, at itsfree end, and so as to embrace the marker-arm G. The lever H stands inthe path of the descending needlebar,` or some extension therefrom inthe usual manner for tuck-markers, unnecessary to be described in thisspecification. The arm Gis hung to the base byaspring-connection,hereinafter described,and so that the spring tends to raise and hold theroller in its up position. The arm G extends through a slot, c, in anupward projection, I, from the base. The forward edge of this slotinclines downward and forward. The place of rest or normal position ofthe bar` is at the upper-end of the slot. The fabric passes over the ribb in the usual manner for tuck-markers, and as the needle descends itforces the arm G down until the roller strikes upon the rear end of therib b, as indicated in Fig. 4, and striking upon the fabric the furtherdescent or pressure of the needle-arm will canse the roller to descendthe incline, thus rolling over the upper edge of the rib, as indicatedin broken lines, Fig. 4, and until the arm C arrives against the frontedge of the slot e. Then left free the arm G rises under the action ofits spring and strikes the inclined side of the slot e, and as itcontinues to rise follows up that incline, carrying the bar rearwarduntil it arrives at its place of rest and ready for the next operation.In case the marker is attached to the work-plate, as in Fig. 2, .thelever H is hung to the base, as at f, and so as to receive the action ofthe needle-bar in the usual manner for this class of markers,and theextension 7L from the lever embraces the arm G to impart the IOOdownward-pressing movement to the markingroller. The advance movelnentmay be imparted to the markingrollcr by an inclined slot, z', in the armof the actuating-lever H, as seen in Fig. 3, and so that as the lever isforced downward as soon as the roller comes to a bearing on the fabricor the rib the inclined slot will impart movement to the arm G, to causethe roller to pass over the rib. In this case the upper edge of the ribb may be in a horizontal plane. This modification will be suiiicient toshow that the advance or rolling movement may be imparted to the rollerby an incline at any point between the actuating-lever and the rib onthe base. I, however, prefer to make the upper edge of the rib inclined,as before described. The periphery ofthe roller and the edge of the ribmust be the one sharp and the other grooved. Thus it may be the rollergrooved and the edge of the rib sharp, as shown, or vice versa.

To give the requisite spring to the markerarm G, and so that it willautomatically return after it has been forced down by the needle, Iconstruct the base A with an extension` I,whichIbendintoavoluteshapedspring. The metal from which the base is madebeing elastic, the coiled or volute spring is sufficiently elastic forall practical purposes. The arm G is attached to the inner end of thespring, as at L. This construction and arrangement of spring is but atrifling matter in the manufacture of the marker, and is not liable tobreak or become displaced, as is frequently the case with attachedsprings.

I am aware that tuck-markers have been constructed in which a stationaryrib is provided, upon which a grooved roller is adapted to work underthe action of the needle-bar, and so that the said roller will in suchaction of the needle-bar not only come down upon the rib, but rollthereon. I therefore do not wish to be understood as claiming, broadly,atuckmarker having such characteristics.

I claimm l. In a tuck-markingattachment for sewingmachines, the rib b onthe base in the line of the mark to be produced, combined with themarker-arm G, the said arm supported by a spring at the end of the baseopposite said rib, and so as to work up and down under the action of theneedle-bar, a roller, a, hung directly upon the end of the said arm asits axis, the said axis being parallel with the arm and the plane of theroller parallel with the plane of the said rib, and adapted to be forceddownward upon said rib, and an inclined or bearing surface,substantially as described, and whereby said marking-roller is forced totravel over said rib, substantially as described.

2. The combination ofthe base A, constructed with the rib b, thespring-arm G, the roller a on the free end of said arm and in the planeof said rib, a lever, II, in connection with said arm G, and throughwhich vertical movement is imparted to said arm G, the upward projectionI on the base, having slot e therein, and through which slot the saidarm G passes, the rear edge of said slot inclined downward and forward,and an inclined surface between the said lever II and the base,substantially as described, and whereby in the descent of the arm G thesaid inclined surface causes the said roller to travel over the surfaceof tbe said rib, substantially as described.

3. The combination of the base A, the inclined rib b thereon, thespring-arm G, the roller a, hung directly upon the free end of the saidarm, the axis of the roller being parallel with said arm and the planeof the roller in the plane of the said rib b, and the lever II, fixed tothe base and in connection with said arm G, substantially as described.

4. The combination of the base A,constructed with the inclined rib b,the spring-arm G, the roller a at the free end of the said arm and inthe plane ofthe said rib, the lever H, hung to the base, and inconnection with said arm the upward projection I on the base,constructed with the slot e, through which slot the said arm G passes,the rear side of said slot inclined downward and forward, substantiallyas described.

JOSEPH I. LAVIGNE.

IVitnesses:

GEORGE S. DICKERMAN, SAML. HALLIWELL.

